Cities hit by the 2011
riots, including London, Birmingham and Manchester, could be left
exposed when thousands of public order police are sent to Northern Ireland
for the G8 summit in June.

Police chiefs are drawing up plans to deploy 4,000 officers from English,
Welsh and Scottish forces to help the Police Service of Northern Ireland to
mount a huge security operation when world leaders gather in Enniskillen.

In addition to concerns about reducing public order capabilities when officer
numbers are being cut severely, there are fears that police from English
forces could be vulnerable to attack by dissident terrorists.